.background {
  height: 80px;
  background-color: rgb(206, 5, 5);
}

.bigbox {
  width: 1000px;
  margin: 0 auto;
}

.head {
  height: 80px;
  background-color: rgb(206, 5, 5);
  color: white;
  line-height: 80px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tabList {
  display: flex;
}

.tab {
  padding: 10px 20px;
  cursor: pointer;
}

.active {
  color: white;
  background-color: rgb(206, 5, 5);
}

.input input {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
}

.list ul {
  list-style: none;
  padding: 0;
}

.list ul li {
  display: flex;
  align-items: center;
  /* justify-content: space-between; */
  margin-top: 10px;
}
.list ul li.completed {
  text-decoration: line-through;
  color: #ccc;
  display: flex;
  justify-content: space-between;
}
.list ul li.li {
  display: flex;
  justify-content: space-between;
}
.list ul li button {
  margin-left: 10px;
  cursor: pointer;
}

.list ul li input[type="checkbox"] {
  margin-right: 10px;
}
